US1254335A - Weighing apparatus. - Google Patents

Description

J. MALENSHECK. WEIGHING APPARATUS.-

APPLICATION FILED AUG. i8. I915.

Patented Jan. 22, 1918.

2 SHEETS-SHEET I.

Fla minute's I. MALENSHECK.

WEIGHING APPARATUS.

APPLICATION FILED AUG. I8, 1915. 1,254,335. Patented Jan. 22,1918

2 SHEETS-SHEET 2.

@vwemIIcS c 80 3 the auxiliary bolster bar and the supporting UNITED STATES PATENT OFFICE.

JOHN MALENSHECK, OF WEST ALLIS, WISCONSIN.

WEIGHING APPARATUS.

Application filed August 18, 1915.

To all whom it may concern:

Be 1t known that I, JOHN. MALENSHECK, a

citizen, of the United States, residing at West Allis, county of Milwaukee, andState of Wisconsin, have invented new and useful Improvements in Weighing Apparatus, of which'the following is a specification.

My invention relates to improvements in weighing. apparatus of the general type oad from't e ordinary bolsters to the auxiliarysuports and, weighing levers. More Specifics. ly, the object is to provide hyraulic means for thus shifting the load. In the drawingsv V Figure l-is a plan view of a. portion of a vehicleframe, showing the auxiliary load shifting and supporting means;

Fig. 2 is a detail sectional-view ofoneof the hydraulic lifting jacks'in its relation to bearing carried by one of the main levers.

Fig 3 is a detail-sectional view of the pumping apparatus and a portion of the associated; pipe connections, the latter being shown in ful Like parts are identified by the same reference characters throughout the ,several views. 7 (0-- 1 is a portion of the main frame of a ljyehicle. =2 and 8 are the main levers of the weighing apparatus and its a diagonal molever, whereby the move-" tion transmitting ment ofthe mam levers 2 and 3 is transmitted to the-scale beam or beams, lever 4 being connected with the levers 2 and 3 at 5. The levers 2 and 3 are pivoted to the main frame near the respective ends of the latter,

' as indicated at 7 in Fig. 1, and when it is desired. to ascertain the wei ht of the load,

theauxiliary bolsters 10 are ifted to remove the vmight from the main bolsters 11 and said auxiliarybolsters are supported from the levers 2 and 3 respectively near the pivotal connections 7, whereby the inner ends of saidlevers 2 and '3 are pressed down- Specification of Letters Patent. Patented Jan, 22, 1918.

Serial No. 46,126.

wardly. This pressure is transmitted through the diagonal bar 4 and indicated upon the scale beam (not shown).

-All of the above mentioned parts are fully shown and described in said former application and as their structural features are not claimed herein, further detailed description is deemed unnecessary.

In said former application, screws and gearing are employed to lift the auxiliary bolsters 10 when it is desired to support the load from the scale beams for the purpose of ascertainingits weight. In the structure shown in the present application, however,

these screwsand gear wheels are dispensed with and the auxiliary bolsterslO are supported bya set of hydraulic jacks. Each jack includes a cylinder 15, having its lower end thickened, as indicated at 1.6, and, provided witha bearing socket 1'? adapted to receive V-shaped bearing projections 18 carried by the supporting lever 2 (or 3). -A plunger-20 i's'located -within the cylinder and 1s preferably'provided with a piston head ,21- of-the ordinary cupleather type.

The upper end of the cylinder 15 is open and the upper end of the plunger is provided with a I vided with a channel 30 in one side'thereof adapted to receive a stop pin or screw 31 to limit the vertical movements of the plunger. The enlarged head or- ,member 25 of the plunger is also adapted to limit the downward movement of the latter by striking upon the upper end of the cylinder 15.

In the construction shown, one hydrau lic jack'is employed near each end of each auxiliary bolster bar 10. A supply of liquid for operating the jacks is stored in a tank 32 connected with the main frame 1 and this liquid .is delivered to the jacks by. means of a pump 33, the piston of which is operated by a suitable handle or lever 34, which is preferably made detachable at 35, so that the outer end of the lever' or handlemay be removed when not in use.-

projecting member or head 25 which is prcf Fig.3 shows the connections of the pump. 37 is a suction pipe leading to the interior of the pump cylinder through a port 38 provided with a check valve 39. is the outlet port provided with a check valve 41 past which the liquid is forced through a pipeAZ, into. a: pipe 43 having suitable branches 44', 45, 46 and 47 leading to the respective jacks.

\Vhen the liquid is forced into the jack cylinderslli, the plungers will of course be lifted, thereby lifting thebolster' bars 10 and raisingthe' load from the ordinary or mainbolsters. The Weight of the load will thenIbesupported upon the levers 2 and 3,

"anil-its' weight'can be ascertained by proper a'jl-jiistment of the' scale weights in the ornaryJnanner. After this has been done, t e'gliq'u'idin the jacks may be permitted to return to the-storage.tank 32 by opening life 45 located in the by-passAlG, whereby 'qui'dzis ffpermitted to flow from pipe 13 and, thence into the tank 32.

Injthe'construction above described, the auxiliary bolsters 10 are preferably bolted directly to' the wagon box. in which case the construction is such that'the plunger heads Eli-will preferablymove downwardly to a suflicient extent to loosen in the bolster sockets when the liquid is exhausted from thecylinders. While I have shown and described my invention as including the use 'of a liquid container from which liquid is delivered to the jacks by neanszof a map, it will of course be'u'nderstood that any fluid may beiemployed' to operate the jacks, and the pump ma be utilized to pump" air into the jacks, at I preferably employ a liquid for'the reason that it is much easier to avoid ,-'leakage and being; substantially incompressible, the operation of lifting the loadanay be much more easily and quickly performed.

VVhile' I have described my invention with particular reference to vehicles, it will be understood that it may be used in any relation where aload supporting member is raisedto lift and support the load from'the weighing mechanism while it is being weighed. \Vhere applied to vehicles, flexible pipesections 43", preferably, 0 mposed of steel tubing, are preferably employed to avoid injury ,to the pipe systems.

I claini- 1. In a weighing apparatus for vehicles,-

the combination with a set of load sup porting levers, connecting the ing apparatus, and hydraulic means for temporarily supporting a load carried by the vehicle from said levers, said hydraulic load supporting same with weight indicat means includinga set of cylinders having the liquid and means for operativelyof a set of auxiliary bolsters by said levers, upright plungers within said cylinders, said plungers having enlarged heads polygonal in cross-section, a set of load-supporting bolsters adapted to be lifted by said plungcrs and to loa dsupporting position, and having downwardly opening upwardly tapered sockets within which the said heads are fitted, a liquid-container carried b said frame, a pump adapted to deliver liquid from the container to said cylinders, together with a valved return' ductadapted to permit liquid to flow from the cylinders back to the container, and re taining keys-between said' heads and cylin- 4 ders, said heads being seated upon the tops of said cylinders when the plungers are at the downward limit of their movement.

3. A weighing wagon comprising a wagon frame. a body normally resting thereon, scale mechanism carried by the frame and including load supporting levers each fulcrumed on the frame, a hydraulic jack between each lever and said body, and each comprising a cylinder and plunger, rela' tively movable andone engaging the body and the other .having pivotal connection with the lever, the arrangement being such that the jacks together are adapted to transfer the entire weight of the body from the frame directly through said jacks to the scale mechanism, and hydraulic connections for opera ting the jacks.

in the presence of two witnesses JOHN MALENSHECK Witnesses Lnvnna'rr .C. WHEELER, Imus D. BREMER.

In testimony whereof I afiix my signature

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